Description

C.I. Solvent Red 139 is a high-performance, oil-soluble red dye belonging to the anthraquinone chemical class. This product is valued for its excellent solubility in non-polar solvents and its ability to impart a strong, vibrant red color. It is primarily used by manufacturers in the plastics, wax, and specialty ink industries for coloring a wide range of hydrocarbon-based materials.

Application

• Coloring of hydrocarbon-based plastics, including polystyrene, ABS, and polycarbonate.
• Dyeing of paraffin waxes and candles for decorative and industrial applications.
• Manufacture of solvent-based inks for flexographic and gravure printing.
• Coloration of lubricating oils and greases for identification purposes.
• Staining of wood stains and polishes to achieve desired aesthetic finishes.
• Pigmentation of synthetic fibers during the melt-spinning process.

Basic Information

Product Name	C.I. Solvent Red 139
CAS No.	61969-49-1
Molecular Formula	C24H20N2O2
Molecular Weight	368.43 g/mol
Synonyms	Solvent Red 139; 1,4-Bis(pentylamino)anthraquinone; 1,4-Bis(amylamino)anthraquinone; Ceres Red BB; Fat Red BB; Oil Red BB; Sudan Red 380; C.I. 26050
EINECS	263-394-5

Quality Control

Our C.I. Solvent Red 139 is produced under a stringent quality management system. Each batch undergoes comprehensive analysis to ensure consistent color strength, purity, and performance. Certificates of Analysis (COA) detailing key parameters such as purity, hue, and solubility are available upon request to support your quality assurance protocols.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at room temperature (15-25°C). Keep away from heat sources and incompatible materials.

Specification

Item	Specification
Appearance	Dark red powder or granules
Identification (IR)	Conforms to standard
Color Strength	100% ± 3% (vs. Standard)
Purity (HPLC)	≥ 98.0%
Solubility (in Toluene)	Complete, clear solution
Moisture Content	≤ 0.5%
Ash Content	≤ 0.5%

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.